swift tableview

TableView after calculating the height, cache the height to avoid the next repeat calculation to reduce unnecessary consumption// declare cellHeightsDictionaryNSMutableDictionary *cellHeightsDictionary; // initialize in code (thanks to @Gerharbo)cellHeightsDictionary = @{}.mutableCopy; // declare table dynamic row height and create correct constraints in cellstableView.rowHeight = UITableViewAutomaticDimension; // save height- (void)

Ext.: http://www.asklinux.com/app/ios/286#When we use TableView, we find that the left side of the split line is shorter and can usually be solved using Setseparatorinset:uiedgeinsetszero. But after upgrading to XCode6, the iOS8 found no effect. Here are the solutions:First, add the following code to the Viewdidload method:if ([Self.tableview respondstoselector: @selector (setseparatorinset:)]) {[Self.tableview Setseparatorinset: Uiedgeinsetszero];} i

Remove ios7.0 above table Split line 15 pixels of space1. First add the following code to the Viewdidload method:if ([Self.tableview respondstoselector: @selector (setseparatorinset:)]) {[Self.tableview Setseparatorinset:uiedgeinsetszero];}if ([Self.tableview respondstoselector: @selector (setlayoutmargins:)]) {[Self.tableview Setlayoutmargins:uiedgeinsetszero];}2. Then add the following code to the UITableView proxy method-(void) TableView: (UITableV

Original: http://blog.csdn.net/lengshengren/article/details/19335637In iOS7, the left side of UITableViewCell will have a default 15 pixels blank. At this point, setting the Setseparatorinset:uiedgeinsetszero can remove the blanks.But in iOS8, setting up Setseparatorinset:uiedgeinsetszero is no longer working. Here's the workaroundFirst, add the following code to the Viewdidload method:if ([Self.tableview respondstoselector: @selector (setseparatorinset:)]) {[Self.tableview Setseparatorinset:uie

Simple Application of IOS xib on tableview (using xib to customize cell), tableviewxib UITableView is a common UI control. In actual development, due to the limitations of native APIs, custom UITableViewCell is very important. Custom cells can be either through code or xib. This article describes how to use xib to customize cells. First, use gif to introduce how to create xib. In the Code Section, note that the Code should be associated with xib whil

Phenomenon: After the iPad is landscape, you want to use initwithframe to set the position on the left side of the screen to display the tableview filled up from top to bottom, but this view only shows half of the top side. The Code is as follows: { At first, I thought it was an autoresizingmask problem. After I commented out this line of code, tableview can all be displayed. However, in the lower-side vie

0821-tableview Cell----------The Uitableviewcontroller control uses(used very frequently in development)1. Delete Storyboard Controller2. Drag Uitableviewcontroller control, tick the control property is initial view controller, delete TableView cell in the control3, let ViewController.h in the Viewcontroller:uitableviewcontroller（You can create a new Viewcontroller (or Ffviewcontroller) to inherit the Uitab

Add the following code to put the split line position of the system at the start position#pragma mark---Set the split line position as the starting position-(void) viewdidlayoutsubviews{if ([Self.tableview respondstoselector: @selector (setseparatorinset:)]) {[Self.tableview Setseparatorinset:uiedgeinsetsmake (0,0,0,0)];}if ([Self.tableview respondstoselector: @selector (setlayoutmargins:)]) {[Self.tableview Setlayoutmargins:uiedgeinsetsmake (0,0,0,0)];}}-(void)

recently encountered a strange problem in the development process, after the status bar is hidden, the page TableView will automatically roll up 20 pixels. The status is as follows:This is because after the iOS7.0, the system automatically adjusts the layout and contentinsets of the ScrollView. This allows it to automatically adapt to the way that the entire screen can fit into the custom control after iOS7. Most of us do not want to receive the autom

downloaded data is stored in memory and the data is downloaded more quickly than the data on the computer.IFrom GitHub above Git clone appeared that xcode-select--switch .... The probable cause is yours.Xcode is not downloaded from the website or you have several versions of Xcode installedWorkaround Click Presence--location--command line Tools hang on.How to check if the frame you downloaded is new or not, just drag the catalogue to the past.and go straight to LS.And then go back to git pull.V

Custom tableView: select all, select one, and delete multiple cells In the previous article, select and delete all tableView editing statuses. In the previous article, we talked about the built-in deletion of the tableView system (the system's all-selected deletion has not been studied for a long time. We also hope that if you use the system's allowsMultipleS

don't need to respond to user requests:-(void) scrollviewdidenddragging: (Uiscrollview *) ScrollView willdecelerate: (BOOL) decelerate {if (!decelerate) {Queue.maxconcurrentoperationcount = 5;}}-(void) scrollviewdidenddecelerating: (Uiscrollview *) ScrollView {Queue.maxconcurrentoperationcount = 5;}-(void) scrollviewwillbegindragging: (Uiscrollview *) ScrollView {Queue.maxconcurrentoperationcount = 2;}In addition, automatic loading of updated data is also friendly to users, which reduces the ti

234567891011121314151617181920 -(void)viewdidlayoutsubviews { if ([self.mytableview Respondstoselector: @selector (setseparatorinset:] Span class= "Crayon-sy" >{ [self. Mytableview setseparatorinset: Uiedgeinsetszero]; }if ([self.mytableview Respondstoselector: @selector (setlayoutmargins :) ]) { [self. Mytableview setlayoutmargins: Uiedgeinsetszero]; }}- (void) tableView : (uitableview Span class= "

UITableView is a common UI control that, in real-world development, is important for custom UITableViewCell due to the limitations of native APIs, and custom cells can be passed through code or xib.This essay is about customizing the cell through Xib.First, we'll show you how to create xib with GIF.Then implement the Code section, pay attention to the implementation of the code at the same time to make the code associated with the Xib. －Here's the code, some explanations I commented on in the co

The Uitableviewcontroller and TableView in the iphone and ipad development should be more of a control.But you will be bored by writing these controls too much.How to make this control work all the time. How to make this control easy to write. is very necessary. In particular, uitableviewcontroller the business logic of Datasouce integration in their own body and let the look of chaos without a chapter.1. The solution Uitableviewcontroller has been ab

The following is the first demonstration of implementation:This example shows the form of an MVVM structure, expressed as followsM: The data model is stored and can be used to process attributes. (that is, the Fat model concept, in XX million people subscribe to this processing method written in model)V:view. Used to unify the management of control initialization and layout.Vm:viewmodel. Responsible for network requests and other calculations or event handlingThe directory structure is as follow

TableView sliding to the bottom, depending on the page can be two waysThe first type: The general style of the tableview without head and tail#pragmaMark-Slide to the bottom-(void) Scrolltabletofoot: (BOOL) Animated {Nsinteger s= [Self.tableview numberofsections];//How many groups are there?if(s1)return;//No data is not executed to not crashNsinteger r = [Self.tableview numberofrowsinsection:s-1];//How many

Recently in the iterative development of the company project encountered a problem, in the ScrollView can toggle the label view of the nested two tableview for the display view, feel everything so easy, the problem arises, because the left and right two views can not only implement the label switch, One of the tableview also need to slide the removal function, then the problem came, sliding gesture confused